Hypersensitivity. Prolactin-releasing pituitary tumour (prolactinoma). GI haemorrhage, mechanical obstruction or perforation. Co-administration w/ potent CYP3A4 inhibitors eg, azole antifungals (itraconazole, voriconazole, posaconazole), macrolide antibiotics (clarithromycin, telithromycin), PIs (ritonavir, saquinavir, telaprevir). Moderate or severe hepatic impairment.